Allow me some comments ...

I think putting command-line switches into the she-bang is not one of the better ideas, I doubt it's portable.

HaukeX just offered an alternative special variable, which even has a full English name $INPLACE_EDIT which is also self documenting.

And you've rather got bitten here by the effects of slurping the whole file into an array which is often a dangerous idea, because the size might be huge. I prefer lazy iteration by working line by line, whenever possible.

And making a full copy in RAM first is rather the strategy when you intend to directly replace the content in the filesystem, so you somehow doubled the efforts to a paradox effect.

Just my 2 cents ... :)

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re^3: Command Switch -i prints to screen not file by LanX
in thread Command Switch -i prints to screen not file by BillKSmith

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